code: def preprocess(self, args: Sequence[Any], kwargs: Dict[str, Any]):
      return convert_all(args, "numpy")
  
file_path: BigDL/python/nano/src/bigdl/nano/deps/neural_compressor/tensorflow/model.py
imports: import os
  from bigdl.nano.utils.common import SafePickle
  import yaml
  from pathlib import Path
  from typing import Sequence, Any, Union, Dict
  from neural_compressor.model.model import TensorflowModel
  from bigdl.nano.utils.common import invalidInputError
  from bigdl.nano.utils.tf import convert_all
  from bigdl.nano.tf.model import KerasOptimizedModel
  from ..core import version
label_desc: Use image node_id 2 for calling the KerasQuantizedModel obj's underlying member method code with example usage: obj.preprocess(args, kwargs) and returns: convert_all